Lyrica can be quite effective at treating nerve pain and is often used for that purpose. Lyrica does that by shuttng down some of the calcium channels that play a role in the production of pain. That reduces the levels of pain promoting substances such as substance P and glutamate. It also, interestingly enough, increases levels of GABA - a feel good neurotransmitter.
Lyrica, therefore, appears to reduce the activity of neural pathways that produce pain and increase the activity of those that produce good feelings. Good luck with the drug. I hope it works for you.